Sash-balancing device.



J. J. GILROY. BASH BALANCING DEVIGIL, APPLICATION FILED 00'1.14, 1910.

1,002,145, I Patented Aug. 29,1911.

BIA PLANOGRAPH c0.,w/1smNGT0N u c UNIT i FFTE JAMES J'. GILROY, OF LOSTCREEK, PENNSYLVANIA.

SASI-I-BALANCING DEVICE.

ocales.

To all whom it may concern:

Be it known that 1, JAMES J. GILnoY, a citizen of the United States,residing at Lost Creek, in the county of Schuylkill and State ofPennsylvania, have invented a certain new and useful Sash-BalancingDevice, of which the following is a specification.

This invention relates, generally, to window sashes and particularly todevices for balancing the sash, and it has for its object to provide asimple, inexpensive, and durable device of few parts, the installationand repair of which may be accomplished without the use of skilledlabor, adapted to suspend the sash at any desired point, and it consistsof the parts and combinations of parts hereinafter described andclaimed.

In the accompanying drawings forming a part of this specification,Figure 1 is a perspective view showing my improved device in use. Fig. 2a vertical section on the line 2-2, Fig. 1. Fig. 3 a perspective viewshowing the parts of the adjusting device for holding and increasing ordecreasing the tension on the sash supporting straps. Fig. 4: a detailhorizontal section through one of the sash stiles. Fig. 5 a detailperspective view of the hook plate and hooks.

Similar letters refer to similar parts throughout all the views.

Referring to the drawings A represents a window casing in which the sashslides, and of the kind known as a solid frame, and which differs fromthe ordinary frame in that it is not provided with a parting head forthe sash. The stiles of the sash are formed wit-h a shallow groove a(see Fig. 4) to receive a narrow strap 7), preferably of metal, the endsof which are slotted, as at c, in order to engage a fastening means attop and bottom of the frame to hold the straps in place. At the top ofthe frame a plate (Z is secured to the piece 6, commonly known as thepulley piece, to which is connected the hooks 7, one for each sashstrap, said hooks being formed of a length of round rod bent to angularshape, as best shown in Fig. 5, and is formed with a blunt or flat head9 at one end, as indicated in dotted lines. The rod is bent away fromthe head at an obtuse angle, as at h, and is then bent at an angle, asat i, and, finally, has its free end 7', bent at right angles to thebody 2' and slightly tapered or sharpened to facilitate its entrance inthe Specification of Letters Patent.

Application filed October 14, 1910.

Serial No. 587,040.

opening is therefor in said plate. The plate is formed with fouropenings or perforations 70, two for each hook, the hooks being insertedpoint foremost through the lower openings before the plate is secured tothe pulley piece, so that thehooks will be locked against removal by theheads 9 after the plates are secured in place. The pulley piece isformed with a depression or recess for each of the heads whereby theymay be pushed backward therein when it isdesired to remove the points ofthe hooks from their openings in order to attach or detach the strapstherefrom. The straps rest in the angle formed in the hooks adjacent thehead, the purpose of the angle being to permit of the ready removal ofthe straps therefrom when the point of the hook is withdrawn from itsopening and, the hook turned downward, into the position shown in Fig.5, sothat the strap may be readily drawn off the same.

At the lower end or bottom of the pulley piece a hook Z, is driven inorder to receive the lower end of the strap thereon. Thus the straps aresecurely fastened to the pulley piece but may be readily removedtherefrom should occasion require.

At a suitable point or points on each of the sash stiles a recess isformed which opens into the grooves a, to receive a threaded bar m, toone end of which is secured a head or block a through which alongitudinally extending rectangular opening 0 is formed to receive thestrap. By means of a nut 29 on the rod m the latter may be moved in orout in order to increase or decrease the tension on the strap, said nutworking in the space between the wings r of a plate 8 secured over therecess in the stile, and said wings being formed with openings 8 toreceive the rod in and act as a guide therefor.

With the parts in the positions described it will be understood thateither the top or bottom sash may be raised or lowered and heldsuspended in their raised or lowered positions by the straps to whichthey are connected through the rod m, the friction head of the latterbeing so adjusted as to bind or pinch the straps and acting as acounterbalance to hold them in their adjusted posit-ion.

Since by reason of my invention the use of balancing weights areobviated, it follows, of course, that the use ofexpensive Patented Aug.29, 191.1;

box frame are also done away; also should a strap wear out or break itrequires but a few moments to replace it without calling in skilledhelp.

Having described my invention what I claim as new is:

1. A sash balancing device, comprising a strap having its ends adaptedfor attachment to a sash frame, a device slidably connected to saidstrap and carried by a sash for balancing the sash, and means foradjusting said device to how the strap to vary the frictionalengagements between said parts.

2. A sash balancing device, comprising a strap having its ends adaptedfor attachment to a sash frame, a device carried by a sash andcomprising an elongated head having a vertical opening therethrough forsaid strap, and means for adjusting said head to bow the strap to varythe frictional engagement between said head and strap.

A sash balancing device, comprising a strap having its ends adapted forattachment to a sash frame, a device carried by a sash and comprising ascrew rod having an elongated head formed With a vertical opening forsaid strap, and a nut for adjusting said head laterally to how the strapto vary its frictional engagement with said head.

In testimony whereof, I affix my signature, in the presence of 'twoWitnesses.

JAMES J. GILROY. lVit-nesses THOS. F. GILL, J. R. CoYLE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

